Vehicle Highlights

What You Will Like

The Silverado range is always one of GM's biggest sellers. This means GM is always endeavoring to innovate and continue to improve the truck's design. As a result, the consumer wins -- whether hauling equipment to a job site, working a farm or towing a boat, the Silverado 2500 and 3500 are built for tough work, and they are some of the best-designed trucks available from any manufacturer. Made in either short- or long-bed form, with two- or 4-wheel drive, optional dual rear wheels and with a choice of several impressively powerful engines, the Silverado can be set up do just about anything asked of it. The 2500, even simply configured, is capable of towing a massive load and base prices start around $31,000.

What's New For 2015

For 2015, the Chevrolet Silverado HD range receives a full exterior and interior redesign. Exterior styling changes match those found on the Silverado 1500 and result in improved aerodynamics and air flow. Interiors have also been restyled to improve comfort, quietness, and storage space. Stabilitrak with Trailer Sway Control is now standard on all models, and new 6.5- and 8-foot beds include standard "CornerStep" bumpers, EZ Lift and Lower tailgates and an LED bed light for nighttime work. In terms of performance, maximum payload has increased from 7,222 pounds to a best-in-class 7,374 pounds. Best-in-class conventional tow rating is now 19,600 pounds, up from 18,000, while maximum fifth-wheel tow rating is up from 22,500 to 23,200 pounds.

Warranty

Basic Warranty: 3 Years / 36,000 Miles

Drivetrain Warranty: 5 Years / 100,000 Miles

Roadside Assistance: 5 Years / 100,000 Miles

A vehicle's warranty can significant impact your maintenance costs after you drive off the dealer's lot, and it's important to understand the different parts. Typically, a new car warranty includes a Basic warranty, which covers everything except the wear items such as brakes and tires; and a Drivetrain warranty, that covers all the parts that make the car move, such as the engine and transmission

[UY2] Trailering Wiring Provisions, For Camper, Fifth Wheel And Gooseneck Trailer
includes additional 7-way wiring harness is located at the rear of the pickup box attached to the rear frame cross member
(Requires (Z82) Trailering Equipment. Not Available With (Zw9) Pickup Box Delete.)
.

[A31-R] Windows, Power
with driver express up and down and express down on all other windows
(Included And Only Available With (Pcm) Work Truck Convenience Package.)

$0

$0

[AQQ-R] Remote Keyless Entry

$0

$0

[9L7] Upfitter Switches, (4)

$110

$125

[C49-R] Defogger, Rear-Window Electric

$154

$175

[KI4-R] Power Outlet, 110-Volt Ac

$0

$0

[DD8-R] Mirror, Inside Rearview Auto-Dimming

$0

$0

[AY0] Air Bags, Single-Stage Frontal And Thorax Side-Impact, Driver And Front Passenger, And Head Curtain Side-Impact, Front And Rear Outboard Seating Positions
(Always use safety belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.
Required With (C7a) 10,000 Lb. (4536 Kg) Gvwr.)
.

[NB8] Emissions Override, California
(allows a dealer in states that require California emissions - California, Connecticut, Delaware, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island or Washington - to order Federal emissions for a vehicle that will be registered in a state that has Federal emission requirements). Do not use for vehicles that will be registered in California, Connecticut, Delaware, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island or Washington.
(Requires (Fe9) Federal Emissions Requirements. Not Available In Maine Or Vermont.)

Trailering equipment Trailering hitch platform 2.5" with a 2.0" insert for HD, 7-wire harness with independent fused trailering circuits mated to a 7-way sealed connector to hook up parking lamps, backup lamps, right and left turn signals, an electric brake lead, battery and a ground, The trailer connector also includes the 4-way for use on trailers without brakes - park, brake/turn lamps (Will be deleted if (ZW9) pickup box delete or (9J4) rear bumper delete is ordered.)

Compare the 2015 Chevrolet Silverado 3500HD

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Introduction

The Chevrolet Silverado HD (and GMC Sierra HD) is the least truck-like of the heavy-duty pickups. Apples to apples Silverado HD usually has a better ride, more precise steering and quieter interior, yet it can still do the work you expect of an HD pickup. For 2015, Silverado HD’s cab and interior match the changes made to the light-duty Silverado for 2014, as do safety features such as forward collision alert and lane departure warning.

Chevrolet Silverado HD, Ford Super Duty and Ram HD compete constantly for weight rating superiority and bragging rights. At introduction, the 2015 Chevrolet Silverado HD fares well with the top payload rating (by less than 75 pounds) and top conventional trailer tow rating (by 1100), but the Ram bests Ford and GM by more than three tons on max fifth-wheel or gooseneck ratings. It’s important to note that while there is an SAE standard for trailering ratings, none of the manufacturers quote figures according to it.

A base 2015 Silverado HD 3500 regular cab 2WD dual-rear wheel can carry 7,343 pounds of payload; it can tow 14,200 pounds. Top fifth-wheel rating is 23,200 pounds on a dually regular cab diesel 4WD (payload 5817). Top conventional towing is 19,600 pounds on a long-bed Crew Cab dually 4WD diesel (payload 5205). Like all big pickups, no one version maxes all the numbers, and these values are for low-option, empty trucks and will only go down with people, options and any cargo on board.

Chevrolet Silverado HD was completely re-engineered for 2011 so the majority of changes to the 2015 Silverado HD are above the frame. Most of the mechanicals got minor tuning and software updates for various control systems, but the basics will look familiar. The cab, interior, sheetmetal and many features are new for 2015.

The 6.0-liter V8 gas engine is rated 360 horsepower and 380 pound-feet of torque for all Silverado HD pickups. Paired with the 6-speed automatic it is a proven, inexpensive combo. For the big towing numbers you need the 6.6-liter Duramax diesel (B20 approved) with 397 hp and twice the torque of the gas V8. Everything in the suspension, steering, brakes, frame and ancillary systems is built to complement the diesel power. As a result, anyone with money and a driver’s license can buy a leather lined four-door cabin capable of pulling a 10-ton trailer (which requires a commercial drivers license in many states).

Vinyl seats and rubber floors remain available. At the other extreme are heated and cooled leather seats with memory and more inputs and ports than some computers (at this time the High Country trim from Silverado 1500 did not make the jump to HD). The dash and materials have been upgraded, Chevy’s very good MyLink infotainment is available, and the breadth of equipment expanded. Forward-hinged doors on the Double Cab that replaces the Extended Cab make it squeak and rattle-free, while both four-doors have more room in back.

The 2015 Silverado HD offers five wheelbases in 2500 (3/4-ton) trim. It comes as a Regular Cab long bed (8 feet), a Double Cab with standard bed (6-foot, 6-inch) or long bed, or Crew Cab with standard bed or long bed. The 3500-series (1-ton) is all long-bed except for a 3500 Crew Cab standard bed with single rear wheels. All dual rear wheel models have the long bed. Some models are available with a pickup box-delete for mounting an aftermarket setup or your own. Pickup fuel capacity is 36 gallons.

Three trim levels are available, WT, LT and LTZ, though not on every configuration. LTZ is limited to Double and Crew Cab models. Expect to add $1,500-$3,000 to move from regular cab to Double or Double to Crew Cab, about $200 from standard bed to long bed, $3,000 for 4WD, and roughly $4000 to upgrade from WT to LT and $5000 from LT to LTZ.

Lineup

2015 Chevrolet Silverado HD models come in Regular and Double Cab versions with an 8-foot bed and Crew Cab with 6.5 or 8-foot bed. Each has a 6-speed automatic transmission, offers two- or four-wheel drive, and all but the Regular Cab 2WD 3500 offer a diesel engine option. The standard 6-liter V8 is rated 360 hp and 380 lb-ft of torque; the CNG version 301 hp and 333 lb-ft.

Walkaround

The 2015 Silverado HD looks much like the 2014 Silverado 1500. The cabs are the same, and while the other parts are unique because of HD dimensions, cooling requirements or dual-rear wheels, the styling is very similar to the light-duty version.

It's a square, imposing truck. As pickups approach medium-duty trucks for work capacity they require more robust cooling packages, so the HD has a larger grille and bumper openings than the Silverado 1500. You can tell the powertrain by hood badges and exhaust outlets, and trim by the amount of bling. Although it looks quite geometric, air flows over the 2015 Silverado HD with less resistance than with the previous version.

A big chrome crossbar and bow-tie logo are Chevy family, and the projector headlight arrangement echoes the 1500. Fog lights (if equipped) are spread well apart and the shark-fin antenna should clear most cab-over campers (though the signal may be affected). The front air dam fitted for fuel economy is low by 4WD standards and will scuff on steep driveways before some cars or vans.

Big square wheel openings, especially on duallys, leave lots of room in the fenders. The dominant design theme is horizontal, broken only by lights and a kink in crew cab rear window line. Side steps are offered in various sizes and finishes, including a small drop-down step ahead of the rear wheels. The cab-to-bed gap gets smaller with every generation. The trailer plugs are adjacent the license plate.

Dual-rear-wheel pickups use a sheetmetal pickup box with integrated fenders for the double rear wheels, resulting in a smoother look and finish (though potentially higher repair bills if you ding one). The substantial reinforcement panels in the dually wheelwells are likely to cause some noise on gravel roads but not collect snow or mud like the old ones.

Where not standard (required by weights and widths) the roof marker lamps, one each side and three in a pod in the center, are optional. The tailgate lifts and lowers easily and one engineer who has removed one solo estimated its weight at 45 pounds. Spray-in bedliners, under-rail bed lights, a variety of lashing points and cargo covers are available. The frame is ready for fifth-wheel installation and the receiver hitch is rated up to 19,600 pounds. Chevy does not require weight-distribution but we'd recommend it with that heavy tongue weight.

The Silverado HD matches up against other heavy-duty pickups in most dimensions as they all carry the proverbial 4×8 sheet of plywood flat in long-box models. However, the Silverado tends to have a slightly lower roofline, and the 4WD is no taller, so they may fit better in your parking garage.

Interior

Except for minor details, the cab from the light-duty has been dropped wholesale on the HD. You will recognize it as a GM product but some buttons, switches or logos are the only bits that aren't new. The 2015 Silverado HD cab is roomier, quieter, more comfortable and offers more advanced infotainment than before.

The biggest news for 2015 is the mid-size Double cab that replaces the Extended cab. Double cab uses a center pillar and forward-hinged rear doors to access a slightly roomier back seat. Yes, you give up some access ease of the old clamshell doors but don't need lots of space adjacent to get in and out, don't bother the front occupants and it results in a much more rigid, quieter cab. Extended cabs were most likely to squeak and groan, but with the smallest openings and six pillars the Double Cab is the strongest version.

All Silverado HD use what amounts to a four-segment dashboard. Far left are lighting, 4WD for all but WT, and trailer brake control, very convenient for adjusting the gain while watching the mirror for trailer lockup. Ahead of the wheel are complete and responsive gauges (diesels get different tachometer and oil pressure scales) with a center screen run through steering wheel controls. In the center are the touchscreen, audio/infotainment controls, climate controls and accessory switches. On the right, upper and lower gloveboxes.

Front seats proved supportive, be they manual or power adjusted. The center of the bench option is adequate for moderate journeys and best for those of shorter stature given less legroom on the flat floor hump. Some trucks have locking storage under that seat, and the backrest folds to an armrest as comfortable as those on the bucket seat/console trucks.

Rear seats are also quite comfortable, your 6-foot correspondent surviving 45 minutes in a Double Cab with no aches and pains. The seat cushion lifts easily for inside cargo area. The Crew cab has plenty of room, bigger doors make it easier to get in and despite the seat feeling closer to the floor than competitors doesn't feel lacking leg room unless compared to a Tundra CrewMax or Ram MegaCab. On the other hand, minimal rear-seat headrests with little lift on the Silverado are far inferior to those found on Ford and Ram heavy-duty pickups.

Outward visibility is good because you're nearly six feet off the ground and the pillars aren't too thick. The hood sculpting gives only clues where the front corners are for close-quarter maneuvering or tight trails, but the snout isn't as long as you think. The telescoping dual-element towing mirrors and the available rearview camera, which we recommend getting, make up for much of what you can't see out the back window.

Basic controls are all easy to find and operate. The shifter has Tow/Haul on the end and an up/down shift button active once you move the lever from D to M. Your dog may move your memory seat or engage a child-lock (one driver did it to us, he swore by accident) and the ergonomics don't suit your correspondent, but complaints are few.

The MyLink infotainment system works well, pairing phones and iPods quickly, and can scroll up to 30 tabs which can be used as radio station presets, navigation locations or phone numbers: Speed-dial for all of it, if you will. Upper-level trucks have plenty of ports in the console, and a Crew equipped with the rear entertainment system will have six USB ports, two SD card slots, AC and DC power points, and video inputs.

OnStar turn-by-turn navigation (Directions & Connections) is included, though there is a monthly service charge after an initial trial. We've had good experiences with the OnStar operators and recommend it. If you get in a wreck that sets the airbag off, the OnStar operator will come on over the speaker system and ask you whether you're okay. If you don't respond, the operator will direct emergency responders to your exact location, handy when no one notices you just plummeted down a ravine. OnStar can direct police to your car if it's stolen, unlock the doors if you lock yourself out. OnStar Hands-Free Calling is available, along with traffic reports, weather updates, stock updates.

Driving Impressions

The Vortec 6.0-liter V8 gasoline engine is now rated 360 horsepower and 380 lb-ft of torque for all pickup applications, on Regular-grade unleaded. Although torque peaks at 4200 rpm, you needn’t rev it up to get most of the power, but towing heavy loads or hauling weight up hill it will downshift frequently as needed. Tow/Haul mode is designed for total loads about 75 percent of gross combined and above (say any trailer more than 8000 pounds behind the gas engine) and works very well.

Last year’s 4.10:1 axle ratio $100 option is now standard and the only one you can get with the 6-liter. Apparently our assertion that it gave better performance and a higher tow limit with negligible impact on fuel economy was correct, or the majority ordered it.

The 6-liter V8 can be ordered as a compressed natural gas unit. The conversion is made at a GM outfitter and is warranteed, but power rating drops to 301 hp and 333 lb-ft. If you work only in certain regions and don’t tow big loads, and CNG is available locally (where it likely costs much less than gasoline), it may be the way to go.

All of the big tow ratings come with the diesel engine: On some configurations it is rated for almost 10,000 pounds more than the gas engine. The diesel is $7195 and requires the $1200 Allison automatic transmission upgrade, but it provides double the torque of the 6-liter at much lower rpm, better fuel economy (by about 35 percent, according to trip computers) and better engine braking through an exhaust brake that even works in cruise control. The diesel’s DEF tank is designed for refills around oil change intervals (5000-7000 miles) and as it runs low, if you ignore the dash display to refill, the truck runs slower and slower. It will never prohibit an engine start. The Duramax is approved for B20 fuel, but be sure to consult the manual and ensure the fuel is to ASTM standards.

A Silverado HD drives heavy, as in a solid feel and deliberate control inputs. It is confident empty or with a load on board. We drove a Regular Cab empty over some marginal roads and the ride wasn’t punishing at all. On longer cabs a special body mount is used at the back for even better ride quality, but as is always the case the wrong wheelbase on the wrong set of expansion joints can still result in some bobbing; this situation is not unique to GM pickups.

Although the steering wheels are shared with light duty trucks the HD feels different. They have more weight on the wheels and use hydraulic assist rather than the electric-assist of the 1500s. Tires on the 3500 duallys were all 17-inch Michelins, but 2500-series trucks offer a choice of 17, 18 and 20-inch tires of various brands. Our choice for ride quality, quiet, work, and replacement costs are the 17- or 18-inch wheels and tires.

As the only heavy-duty pickups with independent front suspension on 4WD models, the 4WD Silverado HD and GMC Sierra HD steer with more precision and absorb front-end road impacts better than do the Ram and Super Duty. Like most torsion-bar sprung vehicles the GM’s trim ride height can (and should) be adjusted for added weight such as a snow plow or big camper.

Almost every Silverado HD may be equipped with a snow-plow package and many plowers opt for the gas engine citing easier very-cold weather operation, quicker throttle response and more payload for spreaders. Diesel models have a claimed wait-to-start of 3 seconds at -20Â°F, available high-idle for faster warmup and a PTO on the transmission.

Brakes are class typical: big vented discs all around. Although a fully optioned Crew dually weighs about four tons, empty HD pickups (with relatively little weight over the rear tires) don’t generally stop any better, often worse, than those carrying some load on the rear wheels. We didn’t get a chance to sample the antilock function in the rain, but it worked respectably on a gravel road.

All 2015 Silverado HD pickups have electronic stability control with trailer sway control. The system includes hill-start assist, which means the truck won’t roll backward on an incline if you take your foot off the brake to put it on the gas; generations of automatic-owners who left-foot brake may never notice the feature.

Newly available on top trims are forward collision alert (FCA) and lane departure warning (LDW) systems. We had both on and never had an LDW false alarm, no small feat in a 21.6-foot long truck, and just one with the FCA, which interpreted a dump-truck in the opposing lane (not over any centerline) as a potential collision.

An integrated trailer brake controller is available to slow your trailer much more comfortably and more controlled and more precisely than most aftermarket controllers can. We recommend getting it, if just for resale value. Likewise, we can’t see much point in a dually pickup without towing mirrors.

A 2.5-inch receiver hitch allows conventional trailer ratings to 19,600 pounds, eclipsing any competitive pickups at post time; the maximum for fifth-wheel trailers on properly equipped Silverado HD models is now 23,200 pounds. The strongest Silverado HD will haul 30,000 pounds of truck, cargo, people and trailer. As with virtually all full-size pickup ratings, the HD with the highest payload will not pull the heaviest trailer, and no pickup will do max load and trailer at the same time.

Summary

The 2015 Chevrolet Silverado HD may not win the numbers battle on paper but in the real world it works just fine. Whether work-ethic simple or sporting more leather than your tack room, the cabin is up to date and quiet for the long haul. It will work on gasoline, compressed natural gas, diesel or B20 biodiesel.

G.R. Whale filed this report to NewCarTestDrive.com from Payson, Arizona.

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